If you want to dodge unwanted calls and spam, Doosra service is a great help. Imagine a VPN with phone numbers. Doosra allows you to use an alternate phone number that you pass on at restaurants, the mall or people with whom you do not want to share your real mobile phone number.

When you get calls or SMSs from these numbers, you may get them forwarded to your real actual phone number or you may block these. It is so essential these days, as the cell phone number is linked to many important documents and accounts. Part of the traffic or total traffic from the second number can be blocked.

The second number could also be used to create a new WhatsApp account, or could be used with any other service based on phone numbers.